This Friday's episode of The Ghost Whisperer recalls the hit horror movie The Ring. But in reverse.

On the installment "See No Evil," there's a dangerous email going around. Those that don't forward it are in serious trouble.

Watch the official CBS promo for the episode below:

[video url="http://www.tvfanatic.com/videos/promo-for-see-no-evil/" title="Promo for See No Evil"] [/video]

We've also compiled a set of images from the upcoming hour. Click on each below for a larger version:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.